Both have come together in the the compilation album, This Is Your Life, which features metal luminaries performing Dio’s songs from all eras of his long career (he sang with Rainbow, Black Sabbath, Heaven & Hell and his own eponymous band, Dio) to benefit the fund.

Metallica, with Rob Trujillo on bass, contributes a nine-minute medley of four Rainbow songs — “A Light In The Black,” “Tarot Woman,” “Stargazer,” and “Kill The King” — called the “Ronnie Rising Medley.”

And, Anthrax (Frank Bello, bass) does a turn with Black Sabbath’s “Neon Nights.” Other artists on the record include The Scorpions, Tenacious D, Adrenaline Mob, and Rob Halford. The album concludes with the original Dio version of the title song, “This Is Your Life,” originally released in 1996.